Paper-bag machine



(No Model.) 10 Sheets-Sheet 1. B. F. SAWYER.

PAPER BAG MACHINE. No. 326,592. Patented Sept. 22, 1885.

l n/vcniov":

(No Model.) 1o Sheets-Sheet? B. P. SAWYER.

PAPER BAG MAGHINE.

No. 326,592. Patented Sept. 22, 1885.

(No Model.) 10 Sheets-Sheet 3.

B. P. SAWYER.

PAPER BAG MACHINE.

Patented Sept. 22, 1885.

(No Model.) 10 Sheets-Sheet 4. B. F. SAWYER.

I PAPER BAG MAGHINE. No. 326,592. Patented Sept. 22, 1885;

zfleapi: Q iTLUGTUEO'T.

r4v PETERS. Phclo-Lfihographen Wamingiom no 10 Sheets-Sheet 5.

(No Model.)

B. F. SAWYER.

PAPER BAG MAGHINE.

No. 326,592. Patented Sept. 22, 1885.

(No Model.) 10 Sheets-Sheet 6. B. P. SAWYER.

PAPER BAG MACHINE.

No. 326,592. 3 Patented Sept. 22, 1885.

(No Model.) 10 SheetsSheet 7.

B. P. SAWYER.

PAPER BAG MACHINE. No. 326,592. Patented Sept. 22, 1885.

(No Model.) 7 10 Sheets-Sheet 8.

B. P. SAWYER.

PAPER BAG MAGHINE.

No. 326,592. Patented Sept. 22, 1885.

(No Model.\ 10 Sheets-Sheet 9.

B. P. SAWYER.

PAPER BAG MACHINE.

No. 326,592. Jatented Sept. 22, 1885.

N. PETER5. PhulwLilhngmpher, washin wn, D. Q

(No Model.)

' 10 Sheets Sheet 10.- B. F. SAWYER.

PAPER BAGMAGHINB.

Patented Sept.-2Z, 1885.'

liJNiTn STATES PATENT Fries.

BENJAMIN F. SAWVYER, OF OXANNA, ALABAMA, ASSIGNOR TO THE UNION PAPER BAGMACHINE OOMPAN Y, OF PHILADELPHIA, PENNSYLVANIA.

MACHINE.

SPECIFICATION forming part of Letters Patent No. 326,592, datedSeptember 22, 1885.

Application filed October 29, 1884. (No model.)

To all whom it may concern..-

Be it known that I, BENJAMIN F. SAWYER, a citizen of the United States,residing in the city ot'Oxauna, county of Calhoun, and State of 5Alabama, have invented certain new and useful Improvements in Paper BagMachines, fully described and represented in the following specificationand the accompanying drawings, forming a part of the same. 1 Thisinvention rclatesto a mechanism which is designed and adapted. for themanufacture of what are known as seamless-bottom bellowssided paperbags, it being the object of the invention to provide a mechanism forthis purpose by which all of the operations of cutting, pasting, andfolding which are necessary to convert a continuous strip or'web ofpaper into bags of this character can be automatically performed in arapid and reliable manner", 2 and bywhich, also, the completed bagwillbe folded to such form that when filled it will assume a square andsymmetrical form withou the aid of hand creasing or folding.

To these ends the invention consists in the 2 several mechanisms, singlyand in Various combinations, which enter into and make up theorganization by which this result is accomplished, all of which will behereinafter fully explained and particularly pointed out. In a practicalembodiment of the present invention the continuous sheet or web of paperwhich is to be converted into bags is, as it is unwound from the roll,led between apair of cylinders, one of which is provided at or 5 neareach end with a circumferent-ially-arranged cutting-blade which extendsaround one-half of the circumference of the cylinder. These blades arelocated upon opposite sides of the cylinder and are provided at theirends 0 with wing portions, which extend diagonally outward, so that asthe cylinders revolve narrow sections will be removed from the oppositeedges of the web alternately. The companion cylinder is provided withcutting- 5 grooves, which are arranged to cooperate with the blades justmentioned in the usual manner. After passing from these cuttingcylindersthe web is led through a folding apparatus, by which it receives fourlongitudinal folds. These four folds are made by first turning inwardand folding down the opposite edges of the web upon lines whichcorrespond with the side edges of the completed bag, and then turningoutward and folding down the portions which are left projecting by there- 5 moval of the narrow sections before referred to. The incompletetube thus formed is then bent around a roll which serves to set thefolds just made and prevent the plies from unfolding, and at the sametime or subsequently it passes in contact with suitable pastingapparatus, by which lines of paste are applied to the edges of the webin such position as to form the side seams of the bag when the crossfoldfor the bottom is made, after which it is drawn between a pair offeeding-rolls and projected in front of a pair of folding and cuttingcylinders. When a sufficient length of the tube to form one-half of abag-length has been projected past the bite of these folding-cylin- 7oders, it is folded transversely into the bite of these cylinders by anordinary, folding-blade, thus forming the fold for the bottom of thebag, and bringing the sides together so that they will be united by thelines of paste already applied as they pass between the cylinders. Asthe bag is fed forward by the folding-cylinders, a cutting-blade mountedin one of said cylinders is projected outward so as to sever the bagfrom the tube in time to allow the freshly-cut end to be again projectedforward in front of the cylinders. As the completed bag leaves thecutting-cylinders, it is acted upon by side-folding mechanisms, whichoperates to form two inwardly-extending V- shaped folds in its bottomcorners, which serve, when the bag is filled, to cause it to assume asquare and symmetrical form without being opened out or creased by hand.Afterbeing thus folded the completed bags pass to a fly or other 0piling mechanism, by which they are delivered from the machine and laidupon atable ready for bundling.

The details in the construction and operation of the organization thusbriefly outlined 5 will now be described and explained in connectionwith the accompanying drawings, in which- Figures 1 and 1* are a sideelevation of a mechanism embodying the present invention. 10o Figs. 2and 2* are a plan view of the same. Fig. 3 is a vertical sectionalelevation of that portion of the mechanism shown in Figs 1 and 2, thesame being taken upon the line a w ofFig. 2. Fig. 4 is a diagrammaticsection taken upon the line y y of Fig. 2. Fig. 5 is a cross-sectionupon the line :0 m of Fig. 3. Fig. 6 is a similar view taken upon theline 9 y of the same figure. Fig. 7 is a partial end elevation lookingfrom the right of the same figure. Fig. 8 is a plan view of the waysupon which thetransverse folding-blade rcciproeates. Fig. 9 is adiagrammatic plan view showing the move ments of the side-folders forforming the V- shaped folds in the bottom corners of the bag. Fig. 10 isa perspective view showing the position of the side-folders just beforethe Vfolds are made. Fig. 11 is a similar view showing the position ofthese folders just after the folds are completed. Fig. 12 is across-section upon an enlarged scale, showing the manner in which theside -folders are entered into the bellows-folds of the side of the bag.Fig. 13 is an enlarged end view of the folder which imparts thelongitudinal folds to the web. Fig. 14 is a plan view ofthe web after ithas had the sections removed from its sides by the firstcutting-cylinders. Fig. 15 is a like view of the web after it has beenfolded longitudinall y and has received the lines of paste.

' Fig. 16 is a cross-sectional view of the web,

taken upon the line av 00 of Fig. 15. Fig. 17 is a like view taken uponthe line y y of the same figure. Fig. 18 is a perspective View of asection of the web of suitable length to form one bag, the same beingshown as partially folded upon the line forming the bottom of the bag,for the purpose of illustrating the manner in which the edges of the webare united to form the side seams of the bag. Fig. 19 is a perspectiveview of the completed bag after the V-shaped folds have been formed inits bottom corners, and Fig. 20 is a per spective view of the bag,showing the same as it will appear after being filled.

Referring to said drawings, it is to be understood that A represents aframework of suitable form and construction to support the various partsof the mechanism in proper working relation to each other. At its righthand or rear end this frame-work is provided with bearings, in which ismounted a spindle, 100, which supports the roll of paper 101, which istobe converted into bags, The spindle 100, or the roll 101, will beprovided with any suitable form of tension apparatus (not shown) bywhich the web will be kept at the proper tension as it enters themachine.

From the roll 101 the web is led between a pair of cutting-cylinders,102 103. The cylin V (ler 102 is provided at its opposite ends with apair of circumferentially-arranged cuttingblades, 99, which are locateddiametrically opposite each other upon the cylinder, each extendingaround one-half of its circumference. These blades are provided at theirends with wings or extensions 30, which extend obliquely outward to theends of the cylinder, as shown in Figs. 1* and 2*. The cylinder 103 isprovided with cutting-grooves 98 31, which are arranged to co-operatewith the. blades 99 30 in the usual manner. These cylinders are of suchlength that as the web passes between them, as shown in Fig. 1*, thesaid blades will operate to remove a narrow sec tion or strip from itsopposite sides alternately, so that as it leaves the cylinder it will bereduced to the form shown in Fig. 14. The cylinders 102 103 willpreferably be made in two parts, as shown in Fig. 2*, each of whichparts is capable of being moved longitudinally upon the shaft, so thatthe blades 99 30 can be adjusted to different distances from each otherto vary the width of the bag produced. Theshafts of these cylinders areprovided with engaginggears 104: 105, by which they are caused torevolve in unison, the two cylinders being driven by a bevel-gear, 106,which is mounted upon the shaft of the cylinder 103, and engages with apinion, 107, upon one end of a longitudinal shaft, 108, the opposite endof which is provided with a pinion, 109, which engages with abevel-gear, 110, mounted upon one end of a transverse shaft, 111, theopposite end of which is provided with a gear (not shown) which engageswith a gear, 112. mounted upon a second transverse shaft, 113, and whichengages with a gear, 114, mounted upon the shaft of the maindriving-pulley 115.

As the web emerges from between the cylinders 102 103, after having beencut to the form shown in Fig. 14. it is turned upward partially aroundthe cylinder 102, and thence passes rearward through alongitudinalfolder or former 116, which is mounted upon a support, 117, extendingbetween the side frames of the machine, as shown in Figs. 1* and 2*.This folder 116 is secured to the support 117 by means of suitable setscrews, as 29, in such manner that it is capable of a slight verticaladjustment, and in such manner also that it can be removed and a wideror narrower folder substituted, when it is desired to change the widthof the bag produced.

The folder 116 consists, as best shown in Fig. 13, of a flat plate orbody, 32, of somewhat greater width than the width of the completed bag,which is provided, near each edge, with a longitudinal recess or groove,15. The body 32 is somewhat thicker at its middle than at its edges, andis provided on its top with a thin plate, 16, which is of a width justequal to the width of the completed bag, and is ar' ranged so that itsedges extend outward over the recesses 15. The body 32 is also providedat its edges with narrow plates 17 which extend inward beneath the edgesof the plate 16, terminating near the inner sides of the recesses 15. inpassing through this folder the central portion, a, of the web is drawnforward over the plate 16, as shown in Figs. 1* and 13, the sideportions, b, being turned inward beneath the edges of the plate 16 andthe projecting portions 0 turned outward beneath the edges of the plates17, as shown in Fig. 13, so that as the web emerges from the folder itwill be folded four times longitudinally and reduced to the form shownin Figs. 15, 16, and 17.

As the longitudinally-folded web, or, as it may now be called, theincomplete tube, emerges from the folder 116, it passes upward around aroll, 97, as shown in Fig. 1*, and thence forward to the final cuttingand folding mechanism, as shown in Fig. 1. As the web passes around theroll 97, the portions b '0 receive continuous lines of paste, asindicated in Figs. 15, 16, and 17, from the pasting-disks 96, which aresecured to a shaft, 95, and receive paste from a fountain, 94, in theusual manner. The shaft 95, to which the disks 96 are secured, issupported upon apair of arms, 93, which are provided with springs, as40, which serve to press the arms upward, so as to hold the disks 96against the roll 97 with a yielding pressure. This is a feature ofconsiderable importance, because, as will be observed, the number ofthicknesses of paper which pass between the pasting-disks and the roll97 is not always the same, there being sometimes two thicknesses andsometimes three. This variation in the thickness of the paper makes itnecessary, in order that the disks may properly apply the paste, thatthey should be capable of accommodating themselves to this variation soas to always exert the same degree of pressure against the roll. Thearms 93 are also provided with adj ustingscrews, as 69, by which thetension of the springs 40 may be regulated as occasion may require. Thedisks 96 are made capable of adjustment upon the shaft 95, so that theymay be made to operate in connection with webs of different widths.

After the lines of paste have been applied in the manner just described,the web is led forward over a cylinder, 80, which is mounted upon theshaft 113, and thence downward between said cylinder anda companionroll, 81, which is mounted upona transverse shaft, 118, and is driven inunison with the cylinder 80 by means of a gear, 119, which engages withthe gear 112. The roll 81 is, as will be ob served, of such length thatit only comesinto contact with the central portion, a, of the web, anddoes not therefore interfere with the lines of paste applied to the sideportions, b and c. In order to hold the side portions in position,

' however, and to preventthem from becoming unfolded while the web ispassing between the roll'81 and the cylinder 80, there are provided apair of vertical guides, 41, which are suspended from a bracket, 92,extending between the side frames of the machine, and lie in closeproximity to the cylinder 80 upon each side of the roll 81, as shown inFigs. 2 and 3. To prevent the guides 41 from becoming smeared withpaste, they are bifurcated at theirlower ends, as shown in Figs. 2 and6, so as to straddle the lines of paste and bear upon the web only ateach side of said lines. These guides will also be made capable oflateral adjustment upon the bracket 92.

As the end of the folded and pasted web passes downward from between theroll 81 and cylinder 80, it passes in front of a pair offoldingcylinders, composed of the cylinder 80, just referred to, and acompanion cylinder, 82, located directly beneath it and mounted upon theshaft 111. When the web or incomplete tube has been thus advanced so faras to bring the line d d (see Figs. 14, 15, and 18) in front of the biteof said cylinders, afolding-blade, 39, will be operated so as to foldthe web upon said line into the bite of said cylinders, thus bringingthe pasted parts I) ctogether, so as to unite said parts and form theside seams of the bag.

The folding-blade 39 is constructed and operated as follows: The bladeitself consists of a flat sheet of metal, which is secured to ayoke-shaped back, 38, the opposite arms of which are provided withtrunnions 2, which rest in heads 10, which are arranged to slide freelyback and forth upon ways 20, supported upon brackets extending inwardfrom theside frames of the machine, asshown in Figs. 6 and 8. The back38 is provided with a forwardlyextending arm, 90, the outer end of whichis connected to one end of an arm, 91, the opposite end of which isloosely mounted upon a shaft, 89, which is'rigidly mounted in a pair ofarms, 88, extending from a rock-shaft, 120, journaled in the side framesof the machine, as shown in Figs. 1, 3, and 6. The shaft 89is providedwith one or more springs, 33, which are secured to said shaft and to thearm 91, as shown in Figs. 1, 2, and 3, in such manner that they have aconstant tendency to rock the arm 91 inward, so as to throw the blade 39into the bite of the cylinders 80 82. The shaft 89 is also provided witha disk, 18, which is loosely mounted upon the shaft, but is rigidlysecured to the arm 91, and is provided upon one side with a notch orrecess, 3, as best shown in Fig. 4, the purpose of which will behereinafter explained. The arms 88 are provided at a distance above theshaft with bearings, in which is mounted a rockshaft, 121, from whichextend a pair of rigid arms, 87, which terminate about opposite the axisof the cylinder 82, and in the upper end of which is mounted a shaft,86, which carries a roll, 85, of about the same size and length as theroll 81. The shaft 121 is also provided at its middle with a third rigidarm, 84, which extends outward beneath the disk 18 and is provided uponits upper side with a pivoted bar, 19, the opposite ends of which areacted upon by adj listing-screws 4 in such manner that its position withrelation to the arm 84 can be slightly varied, as best shown in Fig. 4.The bar 19 is provided upon its upper side with a projection, 5, whichis of suitable form to engage with the notch 3 of the disk 18 undercertain conditions, which will be hereinafter explained. The shaft 120extends at one end beyond the side frame of the machine and is providedwith an arm, 122, the upper end of which is provided with shown in Figs.1 and 2.

a bowl, 28, which rests upon the periphery of a cam, 35, mounted uponthe shaft 111, as The arms 87 are p rovided with one or more springs,83, the tendency of which is to rock the shaft 121so as to raise the arm84 and hold the bar 19 in contact with the disk 18, and thus, throughthe arms 88, rock the shaft 120, so as to hold the bowl 28 in contactwith the cam 35, as also shown in Figs. 1 and 2. I

Just in front of the heads 10 the ways 20 are provided with a secondpair of sliding heads, 11, (see Fig. 8,) which are pivotally connectedby means of a pair of links, 12, with a pair of rock-arms, 13, which aremounted upon studs 14, projecting from the side frames, and are rigidlyconnected with each other by a web, 21, as best shown in Fig. 4. One ofthe arms 13 is provided with an arm, 22, theend of which rests upon theperiphery of a cam, 23, which is also mounted upon the shaft 111, asshown in Fig. 3. The arm 22 is kept in constant contact with the cam 23by means of one or more springs, 24',

arranged in any convenient manner, as, for example, as shown in Figs. 3and 4.

In order to properly regulate the forward movement of the arms 13 theweb 21 is pro;

'vided with an arm, 25, which extends forward beneath the arm 22, and isprovided with an adjusting-screw, 9, by which the position' of the arm22 can be varied so as to determine the forward position of the arms 13and heads 11. The rearward movement of the arms 13 and heads 11 isdetermined by means of a pair of stops, 26, the position of which can bevaried by means of the rods 27 and nuts 6, as best shown in Fig. 8.

The operation of the mechanism just described is as follows: The variousparts are so timed with relation to each other that while the end of theweb is being projected in front of the cylinders 82, the blade 39 andthe roll will be held in the'position shown in Figs. 1 and 3. As soon,however, as the line (I d of the the pasted and folded web arrivesopposite the bite of the cylinders, the cam 35 will have arrived in suchposition as to perniit the arms 122, 88, and 87 to be drawn-inward bythe spring 83 so as to carry the roll 85 into contact with the cylinder82, and cause it to press and hold the end of the web against saidcylinder, as shown in Fig. 4. The cam 35 is so shaped, howeverythatafter the roll 85 has come into contact with and been arrested by thecylinder 82, it will permit the arm 122 to be carried inward a shortdistance farther, thereby causing the spring 83 to rock the shaft 121slightly, so as to move the arm 34 and bar 19 downward sufficiently todisengage the projection 5 from the recess 3 of the disk 18, and thusallow the springs 33 to rock the arm 91 and throw the blade 39 into thebite of the cylinders 80 82, and effect the folding upon the line (I d,as also shown in Fig. 4. Just before the folding takes place, however,the cam 23 will arrive in such position as to permit the springs 24 torock the arms 13 to the position shown in Fig. 4, thereby carrying theheads 11 to the front of the bite of the cylinders 80 82, and out of theway of the heads 10. After the fold of the web has been well enteredinto the bite of the cylinders 80 82, the cam 23 will arrive in positionto rock the arms 13 forward, so as to carry the heads 11 into contactwith the heads 10 and force the blade 39 back to its normal position;and at the same time that this takes place the cam will arriveinposition to rock the arms 122, SS, and 87 back to their normalpositions, thereby raising the arm 84 and bringing the bar 19 intocontact with the disk 18, so that the projection 5 will enter the recess3 and hold the blade in its retracted position until it is againreleased, as just described.

The cylinder 80 is provided with a severingblade, 45, which is adaptedto move in and out through a longitudinal opening, 34, in the cylinder,it being for this purpose provided with apair of arms, 36, which arepivotally secured to a pair of arms, 37, extending from a rockshaft, 42,which. is journaled in the heads of the cylinder and provided at one endwith an arm, 43, which rests upon the periphery of a stationary cam, 44,as shown in Figs. 2 and 3. The shaft 42 is provided with a spring, 8,

the tendency of which is to throw the blade outward through the opening34,when permitted by the cam 44 to do so. The blade and its auxiliariesj ust mentioned are so arranged that after the web has been folded intothe bite of the cylinders, as just described, and just after the line 0e of the web has passed the bite of the roll 81 and cylinder 80, the arm43 will pass over the point 46 of the cam 44, so that the spring 8 willbe permitted to rock the shaft 42 and project the blade 45 quicklyoutward through the opening 34 and beyond the periphery of the cylinder,the web at this time being held between the cylinders 80 82, and theroll 81 and cylinder 80 will be stretched tightlyover the surface of thelatter, so that as the blade 45 is thus projected outward it will severthe web upon the line e e, leaving the forward free end to'be carriedonward between the cylinders 80 82, and the rear free endto passdownward in front of said cylinders to be folded at the proper time, inthe manner already described.

As the now completed bag emerges from between the cylinders 80 82, it iscarried forward between a traveling apron, 47, and a lar form as soon asfilled.

their operation will now be described. These bag between the apron 47and plate 48, a roll, 55, the shaft of which is mounted in the frame123, is located beneath the apron at a suitable distance in advance ofthe cylinders 80 82, and directly above this roll there is provided arevolving disk, 56, which is mounted upon a cross-shaft, 57, andarranged to extend through a slot in the plate 48, so as to press thebag against the apron and the roll 55, and thus secure its positiveadvancement. Vhile the bag is being advanced between the apron 47 andplate' 48,it is subjected to the action of the side-folders, beforereferred to, by which the V-shaped folds are formed in its bottomcorners, which cause it to assume a rectangu- These folders and foldersare carried upon a pair of heads, 70, which are arranged to reciprocateupon ways 7-l,formed upon the side frames of the machine, as best shownin Fig. 5, and consist of the folders proper, 72, and the guides orguards 73, as best shownin Figs. 2, 9, 10, and 11. The folders 72consist of thin plates, and are secured to the ends of a pair of arms,74, which are pivoted upon studs 7, rising from projec:

tions 58, extending inward from the heads 70;

. studs 65.

as best shown in Figs. 2 and 5, while the guides or guards 73, whichconsist of thicker plates, which are beveled at their inner ends, andprovided with recesses I, (see Figs. 10 and 11,) are secured to the endsof a pair of arms, 75, which are also pivoted upon the studs 7 ,beneaththe arms 74, as best shown in Figs. 2 and 5. The arms 74, which carrythe folders 72,'are provided with outwardly-projecting arms 59, the endsof which are provided with studs or bowls 60, which enter cam-grooves61,formed in the ways 71, (see Figs. 2, 5, and 9,) while the arms 75,which carry the guides or guards 73, are provided with forwardlyextending arms 62, the ends of which incline inward, so as to be actedupon by the stationary studs 63, and also upon their under sides withcam projections 64, (see Figs. 2 and 9,) which are so arranged to beacted upon by the stationary The heads 70, upon which the arms 74 75 arepivoted, are provided with downwardly-extending arms 66, which areconnected by links 67 with a pair of arms,125, which extend upward froma rock-shaft, 126, the end of which is provided with an arm, 127, whichis connected bya rod, 128,- with a crank, 68, secured to the shaft 111outside of the gear 110.

The operation of this part of the mechanism is as follows: Just beforethe folding-blade 39 is moved inward to fold the web into the bite ofthe cylinders 80 82, as already described, the crank 68, through the rod128, arms 127 125, and links 67, commences to move the heads 70,carrying the side-folders and their guards rearward from the positionshown by broken lines in Fig. 9, and this movement continues until justbefore said parts arrive at the position shown by the light dotted linesin said figure, at which time the studs of the arms 59 will enter theoutwardly-inclined portions of the cams 61, thereby throwing the folders72 outward, after which these parts will continue their rearwardmovement until they arrive at the position shown by the full lines insaid figure, which will bring the folders and their guards just to therear of the bite of the cylinders 80 82. While the folders and theirguards are being moved rearward, as just described, the blade 39 will bemoved forward to fold the web into the bite of the cylinders 80 82, asalready described, so that by the time the folders and guards arrive inthis position the bottom fold of the bag will have been entered into thebite of the cylinders and the folding-blade withdrawn. Just afterthefolding-blade has been withdrawn and just as the side-folders andguards are completing their rearward movement, the cam-projections 64will come into engagement with the studs 65, so as to throw the guards73 inward to the position shown by the heavy dotted lines in Fig. 9.This will cause the ends of said guards to enter between the parts I) bof the web just in the rear of the bite of the cylinders 80 82, asindicated in Fig. 12. As soon as this takes place, the crank 68 willcommence to move the heads 70 in the opposite direction, therebycarrying the guards 73 forward between the cylinders 82, (the ends ofone or both of the cylinders being slightly cut away, as shown at w, topermit of this,) and with their ends in the bellows sides of the bag, asshown in Fig. 10. It will be observed that during this movement theguards 73 do not enter sufficiently far into the bellows sides of thebag to come between the parts I) 0, thereby permittingthese parts to bepressed together and united by the lines of paste as they pass betweenthe cylinders. By reason of the relative lengths of the arms 125 and 127the forward movement of the heads 7 0 will be considerably faster thanthat of the bag, so that by the time the studs 60 have arrived inposition to enter the inclined portions of the camgrooves 6l,the guards73 will have moved forward to a point near the bottom of the bag. As theheads 70 continue their forward movement, the studs 60 of the arms 59will enter and pass along the inclined portions of the cam-grooves 61,thereby moving the folders 72 inward to the position shown by the brokenlines in Fig. 9. As the folders are thus moved inward, they will enterthe recesses I in the guards 73, and be thus guided into the bellowssides of the bag, as shown in Fig. 10. As soon as the folders have beenentered into the bellows sides of the bag, the inclined ends of the arms62 will come into contact with the studs 63, and the guards 73 will beagain moved outward to their normal position. As the folders 72 continueto be moved inward, as just stated, they will enter between the parts I)c and'turn the upper folds of the bellows sides of the bag over onto thetopof the plate 48, as shown in Fig. 11, and thereby form the twoV-shaped folds m a 0 in its bot- IIO tom corners, as shown in Figs. 11and 19, which folds will cause the bag to assume a rectangular andsymmetrical form when filled, as shown in Fig. 20. After the sides ofthe completed bag have been thus folded over onto the body, and as thebag leaves the plate 48 it passes between the cylinder 51 andapressingroll,76, mounted directly above said cylinder,

,by which the various folds are fully broken down and set.

As the bags emerge from between the cylinder 51 and roll 76,they passonto a fly, 129, by which they are piled upon a table, 130, to beremoved by an attendant. The fly 129 is operated inthe usual mannerthrough a rod, 131, which is connected to a crank-pin proj ecting fromthe face of the gear upon the shaft 111, which engages with the gear112, and to one end of a pivotal lever, 132, the opposite end of whichis provided with a segmental gear, 133, (see Fig. 3,) which engages with-a gear, 77, mounted upon the end of the shaft 136 of the fly.

' The piling-table 130 is mounted so as to be capable of verticaladjustment upon a pair of rods, 134, and is provided with a pawl, 78,which engages with a threaded rod, 135, as shown in Figs. 3 and 7, theupper end of which is provided with a ratchet-wheel, 137, which isengaged by a pawl, 79, mounted in a short arm or projection extendingfrom the shaft 136, as best shown in Fig. 3. From this ar rangement itresults that each time the fly 129 is operated the shaft 135 is causedto make a partial revolution, thereby causing the table 130 to begradually lowered as the pile of bags upon it increases in height. Whenthe table has been thus lowered to the limit of its downwardmovement,and the pile of bags has been removed by the attendant,thetable can be readily raised to its uppermost position, the pawl 78simply sliding idly over the threads of the rod 135.

Having thus described my invention, what I claim is- 1. The combination,with the cutting-cylinders 102 103, provided with blades which arearranged to remove narrow sections from portions of the opposite sidesof the web, of the folder 116, constructed and arranged to impart fourlongitudinal folds to the web, substantially as described.

2. The combination. with the cutting-cylinders 102 103, provided withblades which are arranged to remove narrow sections from the oppositesides of the web alternately, of the folder 116, constructed andarranged to impart four longitudinal folds to the web, substantially asdescribed.

3. The combination, with the cutting-cylinders 102 103, provided withblades which are arranged to remove narrow sections from portions of theopposite sides of the web, of the folder 116, constructed and arrangedto impart four longitudinal folds to the web, and a pasting mechanismarranged to apply lines of paste to the edges of the web, substantiallyas described.

4. The combination, with thefolding-cylinders 8O 82 and the feeding-roll81, of the vibrating roll 85, and a folding-blade for fold-- ing the webinto the bite of said cylinders, substantially as described.

5. The combination, with the cylinder 80, carrying the blade 45, of thecompanion cylinder 82 and the feeding-roll 81, and means for projectingsaid blade suddenly outward beyond the periphery of its cylinder, so asto sever the passing web at a point between the roll 81 and the cylinder82, all substantially as described.

6. The combination, with the cylinder 80,-

carrying the blade 45, of the companion cylinder 82 and feeding-roll 81,a blade for folding the web into the bite of said cylinders, and meansfor projecting the blade 45 suddenly outward beyond the periphery of itscylinder to sever the web, all substantially as described.

7. The combination, with the cylinder 80, carrying the blade 45, of thecompanion cylinder 82, feeding-roll 81, and vibrating roll 85,

a blade for folding the web into the bite of said cylinders, and meansfor projecting the blade 45 suddenly outward beyond the periphery of itscylinder to sever the web, all substantially as described.

8. The combination, with the folding-cylinders 80 82, of thefeeding-roll 81, and the vibrating roll 85, the spring-controlled blade39, and means for holding and releasing said blade, all substantially asdescribed.

9. The combination, with the reciprocating blade 39, connected to therock-arm 91, of the disk 18, and spring or springs 33, and the rockarm84, by which said disk is held and released,

substantially as described.

10. The combinatiomwith the reciprocating blade 39, connected to therock-arm 91, of the disk 18, and spring or springs 33, the rockarm 84,by which said disk is held and released, and the reciprocating heads 11,by which said blade 39 is retracted, substantially as described.

11. The combination, with the folding-cylinders 80 82, of thelaterally-vibrating guides 73, arranged to enter the bellows folds inthe sides of the bag in the rear of said cylinders and then pass forwardwith the bag, substantially as described.

12. The combination, with the laterally-vibrating guides 73, arranged toenter the bellows folds at the sides of the bag and move forward withthe bag, of the laterally-vibrating folders 72, arranged to co-operatetherewith to fold inward one side of the bellows portion of each side ofthe bag, substantially as described.

13. The combination, with the apron 47 and the plate 4.8, between whichthe bag is advanced, of the laterally-vibrating guides 73 andco-operating folders 72, arranged to ad- Vance with the bag as theyoperate to fold inward one side of the bellows portion of each side ofthe bag, substantially as described.

14. The combination, with means for supporting and advancing the bag, ofthe laterally-vibrating guides 73 and co-operating folders 72, arrangedto advance with the bag as they operate to fold inward one side of thebellows portion of each side of the bag, and the pressing-roll 7 6,substantially as described.

15. The combination, with the fly 129 and piling-table 130, of thescrew-rod 135 and the pawl and ratchet 79 137,-substantially as described.

16. The combination, with the fly 129 and piling-table 130, of thescrew-rod'l35, pawl and ratchet 79 137, and the pawl 78, snbstan tiallyas described. A

17. The combination, with the cutting mechanism arranged to remove thenarrow portions from the opposite sides of the web, of folding mechanismarranged to impartfour longitudinal folds to the web, pasting mechanismarranged to apply lines of paste to the edges of the folded web, foldingmechanism arranged to fold the web transversely upon the line whichforms the bag bottom, and cutting mechanism arranged to sever the bagfrom the web, all substantially as described.

18. The combination, with the cutting mechanism arranged to remove thenarrow portions from the opposite sides of the web, of folding mechanismarranged to impart four longitudinal folds to the web, pasting mechanismarranged to apply lines of paste to the edges of the folded web, foldingmechanism arranged to fold the web transversely upon the line whichforms the bag-bottom, cutting mechanism arranged to sever the bag fromthe web, and side-folding mechanism arranged to fold over onto the bodyone side of the bellows portion of each side of the bag, allsubstantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

BENJAMIN F. SAWYER.

Witnesses:

J. D. ROBERTS, A. L. SAWYER.

